FIRE DETECTION APPARATUS AND METHOD USING LIGHT SPECTRUM ANALYSIS

    公开(公告)号:US20210123864A1

    公开(公告)日:2021-04-29

    申请号:US17069137

    申请日:2020-10-13

    Abstract: Provided are a fire detection apparatus and method for analyzing a spectral distribution of secondary light generated as primary light is scattered or transmitted through smoke particles to distinguish between fire smoke generated due to an actual fire and living smoke generated in daily life, thereby reducing non-fire alarms. When smoke enters the inside of the fire detection apparatus (100) due to a fire, secondary light (150) scattered or transmitted through smoke particles (140) is incident on the light receiver (120). Upon receiving the secondary light (150), the light receiver (120) outputs a spectrum (170) of the secondary light (150). The fire identification unit (160) receives and analyzes the spectrum (170) of the secondary light (150) and identifies whether the smoke particles (140) are particles of living smoke or particles of fire smoke.

    APPARATUS AND METHOD FOR SPECTROSCOPIC ANALYSIS ON INFRARED RAYS

    公开(公告)号:US20230018507A1

    公开(公告)日:2023-01-19

    申请号:US17522268

    申请日:2021-11-09

    Abstract: Provided herein is an infrared spectroscopy technique capable of performing spectroscopic analysis on infrared rays in a broad infrared range (including a near infrared range, a short infrared range, a mid-infrared range, a far infrared range, and an extreme infrared range). An apparatus and a method for spectroscopic analysis on infrared rays are provided, without using an image sensor having a limited response range, to generate a signal in which transmitted light for each wavelength passes through a plurality of filters having different transmittances for each wavelength and is spatially pattern-coded, restore the signal into an infrared transmittance image, discriminate a wavelength according to a transmittance of the filter from the infrared transmittance image, calculate an intensity of the light for each wavelength, and output infrared spectrum information.

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